Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/pr20126.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* dg-do run */ /* dg-options "-O2" */ /* PR target/20126 was not really target-specific, but rather a loop's failure to take into account the possibility that a DEST_ADDR giv replacement might fail, such as when you attempt to replace a REG with a PLUS in one of the register_operands of cmpstrqi_rex_1. */ extern void abort (void); typedef struct { int a; char b[3]; } S; S c = { 2, "aa" }, d = { 2, "aa" }; void * bar (const void *x, int y, int z) { return (void *) 0; } int foo (S *x, S *y) { const char *e, *f, *g; int h; h = y->a; f = y->b; e = x->b; if (h == 1) return bar (e, *f, x->a) != 0; g = e + x->a - h; while (e <= g) { const char *t = e + 1; if (__builtin_memcmp (e, f, h) == 0) return 1; e = t; } return 0; } int main (void) { if (foo (&c, &d) != 1) abort (); return 0; }